8-bit Micro-controller

MPC89x51A is a single-chip 8-bits micro-controller with the instruction sets fully compatible
with industrial-standard 80C51 series Microcontroller
There is 4 Kbytes Flash memory embedded for application program, 11 Kbytes data Flash
shared by In-System Programming code, and In-Application-Programming code. In-System
Programming and In-Application Programming allow the users to download new code or data
while the Microcontroller sits in the running state.
There are 512 bytes on-chip RAM embedded that are provided to implement wide field
applications. The user CAN configure the device to run in 12 Clocks per machine cycle, or 6
Clocks per machine cycle to achieve twice performance.
MPC89X51A is built with four 8-bits I/O ports, one 4-bits I/O ports, three 16-bits TimerCounters
an eight-source, four-priority-level interrupt structure, an enhanced UART and on-chip crystal
Oscillator It was fabricated in advanced embedded Flash CMOS technology. By Megawin Technology